Yes and no. Faster, yes, but weaker. It is OK to drive a motor at over-voltage (as long as it's not too much). You gain the benefit of greater motor speed, but you get less torque out of the motor (EG if you doubled the voltage thus doubling the motor speed, you half the torque) The stall current increases propotionally with the motor speed. Also, when you double the voltage, you are at risk of quadrupling the heat generated in the motor and circuit, leading to a meltdown of your system.

Yes and no. Faster, yes, but weaker. It is OK to drive a motor at over-voltage (as long as it's not too much). You gain the benefit of greater motor speed, but you get less torque out of the motor (EG if you doubled the voltage thus doubling the motor speed, you half the torque) The stall current increases propotionally with the motor speed. Also, when you double the voltage, you are at risk of quadrupling the heat generated in the motor and circuit, leading to a meltdown of your system.

-Buk

Hey are you sure that's right? I could swear torque have never decreased in any of my motors before when I upped the voltage.

Yes and no. Faster, yes, but weaker. It is OK to drive a motor at over-voltage (as long as it's not too much). You gain the benefit of greater motor speed, but you get less torque out of the motor (EG if you doubled the voltage thus doubling the motor speed, you half the torque) The stall current increases propotionally with the motor speed. Also, when you double the voltage, you are at risk of quadrupling the heat generated in the motor and circuit, leading to a meltdown of your system.

-Buk

No offence, but that's a load of bollocks.

Except the last sentence about overheating. That's usually the limiting factor which prevents you overvoltaging a motor in the first place. You're right that the voltage itself isn't a problem (insulation won't break down until it's much higher), rather it's the extra heating caused by the extra current caused by the extra voltage.

But to the OP, yes you can increase performance but you'll have to worry about both the motor and the electronics, either of which could fail. If you don't care about reliability and destroying them, the best way is crank it up and see what happens, if you do care, that's what data sheets are for